What are the differences between using Heroku and using Redis Labs directly? – Redis Labs Knowledge Base

The Heroku charging system is based on hours/minutes of activities per month while we charge for a whole month
Only direct users can use the 'Pay-As-You-Go' plan.
Only direct users can use the 'SSL' plan.
Only direct users can subscribe to a 'Multi-AZ' plan.
In Heroku, the first DB that is created cannot be deleted.
Only direct users can use the AWS security groups and source IP for access control.
If your app is on Heroku, you cannot know the zone in the region, so your Redis DB will likely be in a different zone, causing a network delay of about 1msec.